WO2001017741A1 - Procede ameliore de production de dalles en ceramique - Google Patents

Procede ameliore de production de dalles en ceramique Download PDF

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Publication number
WO2001017741A1
WO2001017741A1 PCT/EP2000/008531 EP0008531W WO0117741A1 WO 2001017741 A1 WO2001017741 A1 WO 2001017741A1 EP 0008531 W EP0008531 W EP 0008531W WO 0117741 A1 WO0117741 A1 WO 0117741A1
Authority
WO
WIPO (PCT)
Prior art keywords
slab
stage
sheet
paperboard
felt
Prior art date
Application number
PCT/EP2000/008531
Other languages
English (en)
Inventor
Marcello Toncelli
Original Assignee
Marcello Toncelli
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marcello Toncelli filed Critical Marcello Toncelli
Priority to EP00956506A priority Critical patent/EP1207986B1/fr
Priority to DE60019302T priority patent/DE60019302T2/de
Priority to US10/031,552 priority patent/US6713015B1/en
Priority to CA002376256A priority patent/CA2376256C/fr
Publication of WO2001017741A1 publication Critical patent/WO2001017741A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/368—Absorbent linings

Definitions

  • the present invention relates to a method for the manufacture of slabs of ceramic material and, more specifically, to an improvement relating to the method and plant described, illustrated and claimed in Italian patent No. 1,293,176 filed on 15 April 1997
  • the slabs of ceramic material to which both the method according to the present invention and that of the above mentioned patent refer are the subject of European patent No. 378,275 and are manufactured from a ceramic mixture consisting of a granulate complying with specific parameters as regards particle size and of an aqueous inorganic binder which has special composition characteristics and for the details of which reference should be made to the text of the aforementioned European patent.
  • the slab thus obtained then undergoes the usual finishing operations, such as sizing, polishing, etc.
  • a major problem during this production process has been that of performing drying of the slab after the moulding phase (namely after vibrating compression under vacuum) in a rapid and as homogeneous as possible manner.
  • the surfaces of the moulded slab must be as free as possible and therefore exposed to the action of the drying means (for example hot air).
  • the "virgin" slab is necessarily formed on a support capable of withstanding a vibrating compression and cannot be handled before, because of drying it reaches a sufficient degree of rigidity so as to become self-supporting at least for perforating the albeit minor handling operations required in order to convey it to the final firing stage.
  • the technology applied hitherto and described in the aforementioned Italian patent uses a layer of fabric or felt which allows the passage of the water vapour from the mixture and a sheet of paper arranged between felt and mixture, said sheet performing multiple functions, namely:
  • the method according to the above mentioned Italian patent uses a thin sheet of paper permeable to water vapour which is arranged above a layer of fabric, preferably felt, which also performs the function of absorbing and allowing the water to pass through during drying.
  • the thin sheet of paper which is completely saturated with water, is preferably treated so that, after drying, it does not form folds which could damage the final slab.
  • the present invention therefore in its most general definition consists of a method for the production of slabs of ceramic material, of the type in which a mixture of a granulated material and a water-based binder, deposited in a metered quantity on a temporary support, undergoes a stage of vibrating compression under vacuum, followed by a drying stage during which the vibro-compressed mixture is supported by a porous material, and a firing stage, during which the dried slab rests on the firing surface by means of a temporary protective layer of refractory material (engobe), characterised in that said mixture, prior to the stage of vibrating compression under vacuum, is enclosed between two sheets, respectively a first sheet and second sheet, of cardboard or paperboard of sufficient thickness for absorbing the excess mixture water, said sheets being removed prior to said drying stage.
  • the bottom surface of the rough-formed or "virgin" slab i.e. that resting on the layer of cloth or felt, is no longer lined with the thin sheet of paper permeable to water vapour which, no matter how thin, in any case prevents removal of the water vapour.
  • both the surfaces of the dried rough-formed slab are free, therefore allowing application of the layer of refractory material to any one of the two surfaces.
  • one of the surfaces of the dried slab undergoes the firing stage with a thin sheet of paper firmly adhering it, such that removal thereof is performed by means of burning during firing.
  • the engobe is applied to the other surface since it is preferable to avoid that the first surface (i.e. the surface with defects) is the surface which is visible in the finished slab and therefore prevent this surface from undergoing excessive sizing in order to eliminate the surface defects.
  • the temporary support may also consist of rubber (such as a rubberised tape) which is intrinsically more resistant to the stress which is applied during the course of vibrating compression.
  • this temporary support at the end of the vacuum compression stage, is removed and does not interfere with the drying stage.
  • a temporary rubber support which does not come into contact with the mixture and therefore does not require any particular maintenance, may be reused a practically unlimited number of times, while the porous fabric or felt used in the previous method has a limited working life.
  • the cardboard or paperboard which replaces the thin layer of treated paper according to the prior art is undoubtedly less highly valued and therefore less costly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Paper (AREA)

Abstract

Selon un procédé amélioré de production de dalles en céramique, le mélange de départ est confiné entre deux feuilles en carton blanchi ou en carton, soumises à une compression par vibrations sous vide. Le carton blanchi ou le carton est suffisamment épais pour absorber l'excès d'eau du mélange, avant le transfert dudit mélange vers les étapes suivantes de séchage et de cuisson. On enlève les feuilles en carton avant l'étape du séchage, de telle manière que la dalle à l'état brut est séchée couchée sur un tissu poreux ou du feutre, et on réalise la cuisson en maintenant la dalle séchée à l'état brut en contact avec la surface du four au moyen uniquement d'une couche protectrice temporaire de matériau réfractaire (engobe).
PCT/EP2000/008531 1999-09-03 2000-08-31 Procede ameliore de production de dalles en ceramique WO2001017741A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00956506A EP1207986B1 (fr) 1999-09-03 2000-08-31 Procede ameliore de production de dalles en ceramique
DE60019302T DE60019302T2 (de) 1999-09-03 2000-08-31 Verbessertes verfahren zur herstellung von scheiben aus keramischem material
US10/031,552 US6713015B1 (en) 1999-09-03 2000-08-31 Method for the production of slabs of ceramic material
CA002376256A CA2376256C (fr) 1999-09-03 2000-08-31 Procede ameliore de production de dalles en ceramique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTV99A000095 1999-09-03
IT1999TV000095A IT1311858B1 (it) 1999-09-03 1999-09-03 Procedimento perfezionato per la produzione di lastre in materialeceramico

Publications (1)

Publication Number Publication Date
WO2001017741A1 true WO2001017741A1 (fr) 2001-03-15

Family

ID=11420673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/008531 WO2001017741A1 (fr) 1999-09-03 2000-08-31 Procede ameliore de production de dalles en ceramique

Country Status (7)

Country Link
US (1) US6713015B1 (fr)
EP (1) EP1207986B1 (fr)
CA (1) CA2376256C (fr)
DE (1) DE60019302T2 (fr)
ES (1) ES2235933T3 (fr)
IT (1) IT1311858B1 (fr)
WO (1) WO2001017741A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022295A1 (fr) * 2002-09-04 2004-03-18 Toncelli, Luca Procede de production de dalles et de panneaux en materiau ceramique et produit ainsi obtenu
ES2224884A1 (es) * 2003-01-21 2005-03-01 Dario Toncelli Procedimiento para la fabricacion de manufacturados en forma de placa de aspecto vitreo y manufacturados en forma de placa resultantes.
US7550106B2 (en) 2002-09-04 2009-06-23 Luca Toncelli, legal representative Process for the manufacture of slabs and panels of ceramic material
ES2329538A1 (es) * 2005-02-14 2009-11-26 Luca Toncelli Procedimiento para la fabricacion de articulos en forma de baldosas.
US8940223B2 (en) 2007-03-28 2015-01-27 Luca Toncelli Method of manufacturing slabs of ceramic material
US9174358B2 (en) 2007-07-16 2015-11-03 Luca Toncelli Method and apparatus for manufacturing slabs with veined effect
EP2889437A4 (fr) * 2012-07-11 2016-04-13 Cosentino Res And Dev S L Procédé de fabrication de surfaces solides à utiliser en construction
US9579821B2 (en) 2009-03-10 2017-02-28 Luca Toncelli Apparatus and method for manufacturing slabs with a veined effect

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1313119B1 (it) * 1999-08-26 2002-06-17 Quarella Spa Manufatto in lastre composite multistrato di granulati lapidei erelativo procedimento di fabbricazione
ITMO20030174A1 (it) * 2003-06-13 2004-12-14 Morandi S R L Off Metodo per la formatura di manufatti ceramici sostanzialmente
ITTV20050090A1 (it) * 2005-06-21 2006-12-22 Luca Toncelli Procedimento e dispositivo per la fabbricazione di manufatti in lastre in conglomerato di materiale lapideo o litoide.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151533A (en) * 1983-12-16 1985-07-24 Natenco Automation & Robotics Pressing products from water- solid mixtures
WO1998046543A1 (fr) * 1997-04-15 1998-10-22 Marcello Toncelli Procede et dispositif pour la production de plaques de materiau ceramique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628989A (en) * 1968-10-01 1971-12-21 Ferruccio Solmi Process for the manufacture of glazed ceramic bodies, in particular tiles, with only one firing
US3959422A (en) * 1973-04-27 1976-05-25 Denk Wilhelm Process of manufacturing concrete moldings
US5264168A (en) 1989-01-13 1993-11-23 Marcello Toncelli Plate product of ceramic material and process for the manufacturing thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151533A (en) * 1983-12-16 1985-07-24 Natenco Automation & Robotics Pressing products from water- solid mixtures
WO1998046543A1 (fr) * 1997-04-15 1998-10-22 Marcello Toncelli Procede et dispositif pour la production de plaques de materiau ceramique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022295A1 (fr) * 2002-09-04 2004-03-18 Toncelli, Luca Procede de production de dalles et de panneaux en materiau ceramique et produit ainsi obtenu
CN100352636C (zh) * 2002-09-04 2007-12-05 达里奥·通切利 陶瓷材料平板及面板制造工艺及其产品
US7550106B2 (en) 2002-09-04 2009-06-23 Luca Toncelli, legal representative Process for the manufacture of slabs and panels of ceramic material
ES2224884A1 (es) * 2003-01-21 2005-03-01 Dario Toncelli Procedimiento para la fabricacion de manufacturados en forma de placa de aspecto vitreo y manufacturados en forma de placa resultantes.
ES2329538A1 (es) * 2005-02-14 2009-11-26 Luca Toncelli Procedimiento para la fabricacion de articulos en forma de baldosas.
US8940223B2 (en) 2007-03-28 2015-01-27 Luca Toncelli Method of manufacturing slabs of ceramic material
US9174358B2 (en) 2007-07-16 2015-11-03 Luca Toncelli Method and apparatus for manufacturing slabs with veined effect
US11045973B2 (en) 2007-07-16 2021-06-29 Luca Toncelli Apparatus for manufacturing slabs with veined effect
US9579821B2 (en) 2009-03-10 2017-02-28 Luca Toncelli Apparatus and method for manufacturing slabs with a veined effect
EP2889437A4 (fr) * 2012-07-11 2016-04-13 Cosentino Res And Dev S L Procédé de fabrication de surfaces solides à utiliser en construction
AU2013288597B2 (en) * 2012-07-11 2017-09-07 Cosentino Research And Development, S.L Method for the production of solid surfaces for construction

Also Published As

Publication number Publication date
CA2376256C (fr) 2008-08-12
ITTV990095A1 (it) 2001-03-03
EP1207986A1 (fr) 2002-05-29
IT1311858B1 (it) 2002-03-19
US6713015B1 (en) 2004-03-30
DE60019302D1 (de) 2005-05-12
EP1207986B1 (fr) 2005-04-06
CA2376256A1 (fr) 2001-03-15
DE60019302T2 (de) 2006-01-26
ES2235933T3 (es) 2005-07-16

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